DE29617824U1 - Cooling circuit safety device - Google Patents
Cooling circuit safety deviceInfo
- Publication number
- DE29617824U1 DE29617824U1 DE29617824U DE29617824U DE29617824U1 DE 29617824 U1 DE29617824 U1 DE 29617824U1 DE 29617824 U DE29617824 U DE 29617824U DE 29617824 U DE29617824 U DE 29617824U DE 29617824 U1 DE29617824 U1 DE 29617824U1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- cooling circuit
- safety device
- circuit safety
- kpa
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims description 11
- 239000002826 coolant Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 6
- 244000309464 bull Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0238—Closure caps with overpressure valves or vent valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
- F01P3/2207—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point characterised by the coolant reaching temperatures higher than the normal atmospheric boiling point
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Details Of Measuring And Other Instruments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
Beschreibung:Description:
Die meisten Verbrennungsmotoren führen die Wärme über einen geschlossenen Kühlkreislauf ab.Most combustion engines dissipate heat via a closed cooling circuit.
Stand der Technik:State of the art:
Meistens sitzt das Überdruckventil auf dem Wasserausgleichsbehälter.The pressure relief valve is usually located on the water expansion tank.
Beim Erwärmen dehnt sich die Flüssigkeit aus und es entsteht ein Überdruck im Kühlsystem.When heated, the liquid expands and excess pressure is created in the cooling system.
Nach Erreichen eines voreingestellten Druckes, meistens 140 kPa öffnet das Überdruckventil, After reaching a preset pressure, usually 140 kPa, the pressure relief valve opens,
Fig. 6 zeigt ein derartiges Überdruckventil.Fig. 6 shows such a pressure relief valve.
Durch den Strömungswiderstand entsteht vor dem Kühler ein Druck bis max. 60 kP D.h. im Kühlsystem werden Drücke bis 200 kPa erreicht.The flow resistance creates a pressure of up to 60 kP in front of the cooler. This means that pressures of up to 200 kPa are reached in the cooling system.
Das isi auch bei den meisten Automobilhersteffem die obere Grenze, weil man keine fahrenden Bomben auf äen Straßen haben will.This is also the upper limit for most car manufacturers because they don't want to have moving bombs on the roads.
Problematisch ist jedoch die Nachheizphase auch „hot. stop" genannt beim Abstellen des Motors im heißen Zustand.However, the post-heating phase, also known as "hot stop", is problematic when the engine is switched off when it is hot.
Solange nur Gas ansteht ,kann dieses durch das Überdruckventil entweichen.As long as there is only gas present, it can escape through the pressure relief valve.
Verdampft jedoch Kühlflüssigkeit im Motor, drückt die Gasblase die Flüssigkeit im Ausgleichsbehälter gegen das Ventil und bei einem Überdruck über 140 kPa tritt Kühlflüssigkeit aus.However, if coolant evaporates in the engine, the gas bubble presses the liquid in the expansion tank against the valve and, if the pressure exceeds 140 kPa, coolant escapes.
Das System ist nicht wartungsfrei.The system is not maintenance-free.
Gelöst wird dieser Mangel jetzt unterschiedlich.This deficiency is now being solved in different ways.
Durch Differeniiafventiie,Ffüssigkeitsumwäizpumpen, Nachlaufen des Lüfters und Überlaufbehälter in der Nachheizphase.Through differential valves, liquid circulation pumps, fan run-on and overflow tank in the post-heating phase.
Alle vorstehenden Lösungen sind kosten-u. energieaufwendig.All of the above solutions are costly and energy intensive.
Problem:Problem:
Der im Schutzanspruch 1-4 angegebenen Erfindung liegt das Problem zu Grunde eine Kühlkreislauf-Sicherheitsvorrichtung zu schaffen, die das Kühlsystem in jedem Betriebszustand absichert, jedoch ohne Kühlffüssigkeitsveriusfe.The invention specified in claims 1-4 is based on the problem of creating a cooling circuit safety device that protects the cooling system in every operating state, but without any loss of coolant.
Lösung:Solution:
Dieses Problem wird mit dem Schutzanspruch 1-4 geföst.This problem is solved with protection claims 1-4.
I · · · · · ···I · · · · · ···
I · · · · · ··* ·I · · · · · ···* ·
I · · · · ·I · · · · ·
Vorteile: •
Advantages:
Ausführungsbeispief:Example of implementation:
Unter das Ventif wie in Fig. 6 gezeigt (Stand der Technik) ist ein zweites Ventil aufUnder the valve as shown in Fig. 6 (state of the art) a second valve is mounted on
der Druckseite ongeordnet.arranged on the print page.
Dieses Ventil hat einen Schwimmkörper oder ist als Schwimmkörper ausgeführt und wird bei ansteigendem Flüssigkeitsspiegel angehoben und in Reihe geschaltet.This valve has a float or is designed as a float and is raised and connected in series when the liquid level rises.
Die Fig. 1-5 zeigen diese Lösung.Fig. 1-5 show this solution.
Fig. 1.1m ruhenden Betrieb (Garage/parken) bleibt das Veniif geschlossen.Fig. 1.1m During idle operation (garage/parking) the valve remains closed.
Fig. 2.Bei Fahrbetrieb - öffnet das Ventif - über 140 kPa.Fig. 2.When driving - the valve opens - over 140 kPa.
Fig. 3.In der Nachheizphase steigt der Flüssigskeitsspiegel (durch Verdampfung im Motor) an und hebt das Ventil 11 unter den Ventilkörper 3.Fig. 3.In the post-heating phase, the liquid level rises (due to evaporation in the engine) and lifts the valve 11 below the valve body 3.
Fig. 4.Zeigt - das Ventil 11 hat geöffnet(über 60 kPa.)und der Druck steht am Ventii 4 an.Fig. 4. Shows - the valve 11 has opened (over 60 kPa.) and the pressure is present at the valve 4.
Fig. 5.Der Flüssigkeitsspiegel und Druck ist weiter angestiegen und das Ventil 4 hat ebenfalls (bei 200 kPa geöffnet.Fig. 5.The liquid level and pressure continued to rise and valve 4 also opened (at 200 kPa).
im Fahr - und Nachheizbetrieb kann der max. zulässige Druck von 200 kPa des Kühisystems genutzt werden.When driving and reheating, the cooling system’s maximum permissible pressure of 200 kPa can be used.
Bezugszeichenliste:List of reference symbols:
1 = Schraubkappe1 = screw cap
2 = Außenclichtung2 = Outside clearing
3 = Ventilkörper3 = Valve body
4 = Überdruckventil4 = Pressure relief valve
5 = Unterdruckventil5 = Vacuum valve
6 = Unterdruckfeder6 = Vacuum spring
7 = Überdruckfeder7 = Overpressure spring
8 = Ventildichtung8 = Valve seal
9 = Gewindestutzen-Ausgleichsbehälter 10= Schwimmkörper9 = Threaded connection expansion tank 10 = Floating body
11 = "hot stop" -Ventil11 = "hot stop" valve
12 = Überdruckventil12 = Pressure relief valve
13 = Ventildichtung13 = Valve seal
14= hot stop - Ventilkörper14= hot stop - valve body
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29617824U DE29617824U1 (en) | 1996-10-14 | 1996-10-14 | Cooling circuit safety device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29617824U DE29617824U1 (en) | 1996-10-14 | 1996-10-14 | Cooling circuit safety device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29617824U1 true DE29617824U1 (en) | 1997-02-13 |
Family
ID=8030539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29617824U Expired - Lifetime DE29617824U1 (en) | 1996-10-14 | 1996-10-14 | Cooling circuit safety device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29617824U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3438422B1 (en) * | 2017-08-02 | 2023-12-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Device and method for regulating the fluid load circulating in a system based on a rankine cycle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0177860A2 (en) * | 1984-10-06 | 1986-04-16 | Behr GmbH & Co. | Device for securing a cooling circuit of an internal-combustion engine |
DE3815023A1 (en) * | 1987-05-29 | 1988-12-08 | Toyoda Gosei Kk | CLOSURE WITH A PRESSURE VALVE |
DE4124182C1 (en) * | 1991-07-20 | 1992-06-04 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
DE4220631C1 (en) * | 1992-06-24 | 1993-03-11 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Valve arrangement for cooling circuit of IC engine - has at least two excess pressure valves and switch valve for change of pressure between excess pressure valves |
-
1996
- 1996-10-14 DE DE29617824U patent/DE29617824U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0177860A2 (en) * | 1984-10-06 | 1986-04-16 | Behr GmbH & Co. | Device for securing a cooling circuit of an internal-combustion engine |
DE3815023A1 (en) * | 1987-05-29 | 1988-12-08 | Toyoda Gosei Kk | CLOSURE WITH A PRESSURE VALVE |
DE4124182C1 (en) * | 1991-07-20 | 1992-06-04 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
DE4220631C1 (en) * | 1992-06-24 | 1993-03-11 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Valve arrangement for cooling circuit of IC engine - has at least two excess pressure valves and switch valve for change of pressure between excess pressure valves |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3438422B1 (en) * | 2017-08-02 | 2023-12-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Device and method for regulating the fluid load circulating in a system based on a rankine cycle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 19970327 |
|
R163 | Identified publications notified |
Effective date: 19970416 |
|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B60K0011020000 Ipc: F01P0011020000 Effective date: 19980702 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20000525 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20030501 |